src/share/vm/runtime/threadLocalStorage.cpp

Tue, 24 Jul 2012 10:51:00 -0700

author
twisti
date
Tue, 24 Jul 2012 10:51:00 -0700
changeset 3969
1d7922586cf6
parent 3156
f08d439fab8c
child 4299
f34d701e952e
permissions
-rw-r--r--

7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

     1 /*
     2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #include "precompiled.hpp"
    26 #include "runtime/threadLocalStorage.hpp"
    27 #ifdef TARGET_OS_FAMILY_linux
    28 # include "os_linux.inline.hpp"
    29 # include "thread_linux.inline.hpp"
    30 #endif
    31 #ifdef TARGET_OS_FAMILY_solaris
    32 # include "os_solaris.inline.hpp"
    33 # include "thread_solaris.inline.hpp"
    34 #endif
    35 #ifdef TARGET_OS_FAMILY_windows
    36 # include "os_windows.inline.hpp"
    37 # include "thread_windows.inline.hpp"
    38 #endif
    39 #ifdef TARGET_OS_FAMILY_bsd
    40 # include "os_bsd.inline.hpp"
    41 # include "thread_bsd.inline.hpp"
    42 #endif
    44 // static member initialization
    45 int ThreadLocalStorage::_thread_index = -1;
    47 Thread* ThreadLocalStorage::get_thread_slow() {
    48   return (Thread*) os::thread_local_storage_at(ThreadLocalStorage::thread_index());
    49 }
    51 void ThreadLocalStorage::set_thread(Thread* thread) {
    52   pd_set_thread(thread);
    54   // The following ensure that any optimization tricks we have tried
    55   // did not backfire on us:
    56   guarantee(get_thread()      == thread, "must be the same thread, quickly");
    57   guarantee(get_thread_slow() == thread, "must be the same thread, slowly");
    58 }
    60 void ThreadLocalStorage::init() {
    61   assert(!is_initialized(),
    62          "More than one attempt to initialize threadLocalStorage");
    63   pd_init();
    64   set_thread_index(os::allocate_thread_local_storage());
    65   generate_code_for_get_thread();
    66 }
    68 bool ThreadLocalStorage::is_initialized() {
    69     return (thread_index() != -1);
    70 }

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